Mounting means for foldable roll-about beds



Feb. 28, 1933. CANE MOUNTING MEANS FOR FOLDABLE ROLL-ABOUT BEDS 2Sheets-Sheet l Original Filed July 23, 1929 l r avel I /6 INVENTORGORDON a H/6 ATTORNEY.

Fig. 2

Feb. 28, 1933. G. F. CANE 1,399,851

MOUNTING MEANS FOR FOLDABLE ROLL-ABOUT BEDS Original Filed July 23, 19292 Sheets-Sheet 2 INVENTOR. GORDON F- C NE BY 5. H/S ATTORNEY f to anovel means of connection betweenthe Patented Feb. 28, 1933 UNITEDSTATES PATENVTI'OFFICE GORDON r. CANE, or SAN FRANCISCO, CALIFORNIA,ASSIGNOR, BY MEsNE ASSIGN- MENTS, TO THORN-THOMPSON, oFsANFRANCISCOLCALIEORNIA MoUN'rINe MEANS to FOLDABLE ROLL-ABOUT BunsApplication filed July 23, 1929, Serial This invention relates tofoldable "beds of the roll-about type and more particularly bed frameand a wheeled, freely movable supporting carriage therefor.

An object of the invention is to generally simplify and improve theconstruction and operation of beds of the character described byproviding a comparatively simple, strong and compact means foreffectively maintaining the equilibrium of the bed with a relativelysmall, light Weight carriage of minimum depth. v g 1 Another object ofthe. invention is to provide a bed of thecharacter described"- in whichthe bed frame will be disposed in a desirably low plane when in positionof use.

A further object is to provide a bed of the character described in whichthe tilting tendency of the carriage during movement of the bed into andout of operative position is efiiectively minimized.

The invention possesses other. objects and features of advantage, someof which, with the foregoing, will be set forth in the followingdescription-of the preferred form of the invention which is illustratedin the draw ings accompanying and forming part of the specification. Itis to be understood, however, that variations in the showing made by thesaid drawings and description may be adopted within the scope of theinvention as set forth in the claim.

Referring to the drawings,

Figure 1 1s a fragmentary side elevation of the bed of my invention aswhen in folded or up-ended position. a

Fi ure 2' is a fragmentary side elevation of the bed as when extendedfor use.

Figure 3 is a fragmentary side elevation of the bed as when in aposition intermediate of the folded and extended positions.

Figure 4 is a fragmentary horizontal sectional View taken on the planeof line 44 of Figure 1. V Figure 5 is a vertical sectional view take onthe plane of line 55 of Figure 1. V

The present embodiment of the bed of my invention as shown in theaccompanying drawings comprises a bed frame 6 which is No. 380,318.Renewed July 22,1932.

arranged for rotation about a horizontal axis on a wheeled carriage ortruck 7.

iMeans of operative connection between the tages as herein described..In'this embodis mentsaid means primarily comprises front and rear links8 and 9 pivotally connected at their ends with thefside rails 10 of thebed frame and with the truck 7 respectively. The bed pivot-points 11 and12 of the links are located in spaced relation to one" another at pointsspaced well inwardly from the head end 14 of the bed frameand arearranged to be disposed over portions of the truck apv proximatelymidway of the front and rear ends of the latter when the bed is inupended position. Furthermore the pivots l1 an d12 1 are arranged to bedisposed over the truck when the bed is extended and the rear pivots 12substantially overlie the rear end or better, the rear floor engagingpoints of the truck whereby the truck is held down efi'ec-' tivelyduring unending as 'wellas extension movement of the bedvf' Referringnow to the truck pivots; it will be noted that the front links Sarepivoted as at 15 on thetruck directly over the front floor engagingpoints'ofthe latter, whereas the rear link truck pivots 16 are locatedbelow the plane of the pivots 15 and approximately midway between therear floor engaging points of the truck and a point midway between thefront and rear ends of the truck.

It will now be apparent that during movement of the bed from vertical toextended position, the axis of rotation of the bed is caused to moverearwardly of the center of gravity of the truck wherebythe' truck isutilized in the most advantageous manner for insuringthe equilibrium ofthe struc the links are. located-well inwardly spaced from the head end14 of the bed frame and the latter projects beyond therear e'nd-ofthetruck when in operative position, the center of gravity Vof the bed willbe in relatively is disposed. in adesirablyclose-to-the-floorcloseproximity to the axis of rotation of thebed and to the center of gravity of'the' truck, whereby not only willthe tilting tendency of the truck be materially lessened but thebalancing of the bed frame may be effected through the mediumof simplecounter-balancing means of minimum size.

-Attention is directed to the fact that the bed frame pivots 11 and 12of the links Sand 9 are spaced horizontally a materially greaterdistance from truck pivot 15 of the front link I position when extended.

Another factor making for stability is that the front links 8 arecomparatively long and thereby .dispose the truck well forward of thehead end 141 of the bed. This increases the rear overhanging of the bedrelative to the truck andthus throws the weight to the rear,

-. whereby the truck better supports the structure and the tiltingtendency thereof is materially lessened as compared to an arrange- ]mentwhere little or no rearward extension or overhang of the bed rearward 1sprovided.

As particularly shown in Figure 4, counterbalancing means is provided inthe form of springs 20 mounted on the truck 7 and connected with therear links 9 through the medium of links 21. As this means'is not hereclaimed as a part of the present invenltion,it is sufficient to say thatsaid means operates to counterbalance the bed structure during movementinto and out of operative position Likewise shown in the drawings is ameans 22 for locking the bed and truck against relative movement in theevent of tilting of the truck and as this means is not claimed as partof the present invention further description is unnecessary. Other partsshown, but not here claimed, are the means 19 for extending andfolding'of the front axis.

leg 23 of the bed,'and the head piece 24: and its associated parts. Itisto be noted, however, that the counterbalancemeans and the lockingmeans may be made of small, light construction due to the particularlyeflicient means of this invention for connecting the bed frame and truckin such manner as to insure maintaining the equilibrium of the bed andtruck during rotationof the bed on its dieferring "now more specificallybe n'otedthat therearlinks- 9 are L-shaped V to the means of connectionof this invention, it will 7 so that they may be positioned as are thelinks 8, inwardly of the sides of the bed frame and as shown in Figure 1permit the head end 14 of the bed to nest within the rear links.

It is'desirable to provide a'stop means to prevent downward movement orsagging of the bed after movement into position ofuse. Ashore shown, thearcuate arms 25 of the locking means 22 and the mountings 26 for thecounterbalance springs 20 offer a convenient arrangement for providingthe said stop means. Consequently as'the arms 25 are fixed to the frontlinks 8 and move past said mountings 26 on the truck, said arms areoffset between their ends to define shoulders 27 which when the bedisextended, as shown 2 in. Figure 2, will lie uponthe mountings 26 andthereby prevent further movement of thebed frame relative to .the truck.I 1

It will nowbe understood that the disposition of the bed pivots 12rearwardly of all other pivots,'the use of relatively'long.;front links,and-the other hereinbeforei described locations of the severalpivotsaswell as the downward locationof-truck pivots 15 and 16 adjacent thefront and rear extremities of the true provide for effectivelymaintaining the equi= librium of the structure withasiinple means ofconnection and a small, compact, and light weight truck of minimumdepth: r i

Iclaim:

1111 a roll-about foldable bed," a wheeled if truck, an upending bedframe, front and rear links pivotally connected to said truck'and bedframe,the connecting points of the front and rear links with the truckbeing respec tively disposed adjacent to the front and rear extremitiesof the truck whereas the frame connecting points of the front links aredis posed over a point substantially midway of the'front and rearextremities of the truck and the frame connecting points oftherear linksare located overand substantially in line with thefrear extremity. ofsaid truck whenthe bed frame is extended for use, said ill( rear linksbeing substantially L shapedrand having portions thereof extended underthe frame when the latter isin upended position. In testimony whereof Ihave hereunto "set my hand at Oakland, California, this 18th day ofJuly,1929.

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